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<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <!-- 
        Rest 参数与 spread 扩展运算符在ES6中已经引入，不过ES6中只针对于数组，
        在ES9中为对象提供了像数组一样的rest参数和扩展运算符
     -->
     <script>
        // function connect({host,port,...user}){
        //     console.log(host);
        //     console.log(port);
        //     console.log(user);
        // }

        // connect({
        //     host:'127.0.0.1',
        //     port:3306,
        //     username:'root',
        //     password:'root',
        //     typr:'master'
        // })

        const skillOne = {
            q:'hello',
        }

        const skillTwo = {
            w:'nihao',
        }

        const skillThree = {
            e:'hi',
        }

        const skillfour = {
            r:'yes',
        }

        const me = {...skillOne,...skillTwo,...skillThree,...skillfour}
        
        console.log(me);
     </script>
</body>
</html>